Is it me or Schweser los 29 do not have any calculations in term of calculating growth rates, and all other items that we must forecast. For instance: Company with 2 product lines A, and B. Total sales in X1 = 88.9 Total sales in X3= 530.5 The annual growth rate = [530.5/88.9]1/2 -1 I have no idea how to do this. Can someone explain why we are ^(1/2)? whats going on here? lol Thanks